Question

resolver equação x+6 x+2 2x+6 2 ​

Answer 1

x²-2x=2x+12

x²-2x-2x-12=0

x²-4x-12=0

Δ=(-4)²-4x1x(-12)

Δ=16+48

Δ=64

x'=-(-4)+8/2x1 =12/2=6

x"=-(-4)-8/2x1 =-4/2=-2